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Re: JPA: annotations or XML?

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On 12/25/2013 6:21 AM, Stanimir Stamenkov wrote:
> Tue, 24 Dec 2013 23:11:01 -0500, /Arne Vajhøj/:
>> On 12/16/2013 3:48 PM, Ricardo Palomaes wrote:
>>
>>>                                 so I could use them in both JPA and
>>> webservice persistence providers in a DAO architecture, with the web
>>> service part not having to include any package from JPA?
>>
>> Having JPA annotation on classes used outside DAL is a bit ugly.
>>
>> An alternative approach is to have both real data classes and DTO
>> classes. But that duplicate some code.
>
> May be one could use internally a subclass for the sole purpose of
> declaring:
>
> @Entity
> @AttributeOverrides({
>      @AttributeOverride(name="foo", column=@Column("FUN")),
>      ...
> })
> @AssociationOverrides({
>      @AssociationOverride(name="bar", joinColumns=@JoinColumn("BAR_ID")),
>      ...
> })
> public class MyDatabaseEntity extends MyBean {
>
>      // Nothing in here.
>
> }
>
> Haven't tried it, though.

I guess the question is whether it will work without
@MappedSuperclass on the base class.

Arne

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JPA: annotations or XML? Ricardo Palomaes <rpmdisguise-java@nowhere.com> - 2013-12-16 21:48 +0100
  Re: JPA: annotations or XML? Arne Vajhøj <arne@vajhoej.dk> - 2013-12-24 23:11 -0500
    Re: JPA: annotations or XML? Stanimir Stamenkov <s7an10@netscape.net> - 2013-12-25 13:21 +0200
      Re: JPA: annotations or XML? Arne Vajhøj <arne@vajhoej.dk> - 2013-12-27 22:34 -0500
        Re: JPA: annotations or XML? Stanimir Stamenkov <s7an10@netscape.net> - 2014-01-02 11:31 +0200

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